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Impact Serial Dot Matrix Printer

EPSON LQ-2180

® SEDM98001

Notice: „ All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION. „ The contents of this manual are subject to change without notice. „ All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them. „ The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice:

Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respective owners. EPSON disclaims any and all rights in those marks.

Copyright © 1996 SEIKO EPSON CORPORATION. Printed in Japan.

PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.

DANGER

Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings.

WARNING

Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

DANGER 1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES. 2. NOWORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK. 3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING 1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE. 3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. 4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTISTATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS. 5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair instructions and procedures included herein are intended for the experienced repair technicians, and attention the preceding page. The chapters are organized as follows:

CHAPTER 1.

PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2.

OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the produc

CHAPTER 3.

DISASSEMBLY AND ASSEMBLY

Describes the step-by-step procedures for disassembling and assembling th product.

CHAPTER 4.

ADJUSTMENTS

Provides Epson-approved methods for adjustment.

CHAPTER 5.

TROUBLESHOOTING

Provides the step-by-step procedures for troubleshooting.

CHAPTER 6.

MAINTENANCE

Provides preventive maintenance procedures and the lists of Epson-approv lubricants and adhesives required for servicing the product.

APPENDIX Provides the following additional information for reference: • EEPROM Address Map • Connector Pin Assignments • C272 Main Board Component Layout • C272 Main Board Circuit Diagram

Revision Status Revision

Issued Date

Description

A

February 3, 1999

First Release

Contents Product Description Specifications ................................................................................................. 8 Features ................................................................................................................ 8 Accessories ........................................................................................................... 8 Printing Specifications ........................................................................................... 9 Paper Handling ...................................................................................................... 9 Paper Specifications ............................................................................................ 11 Electrical Specifications ....................................................................................... 15 Reliability ............................................................................................................. 15 Safety Approvals ................................................................................................. 15 CE Marking .......................................................................................................... 15 Firmware Specifications ............................................................................... 16 Control Codes and Fonts .................................................................................... 16 Interface Specifications ....................................................................................... 18

Disassembly and Assembly Adjustment Overview ...................................................................................................... 33 Pre-operation for the Adjustment Program ......................................................... 33 Bi-D Adjustment .................................................................................................. 35 TPE Level Reset ................................................................................................. 36 Writing the User-characteristic Data ................................................................... 37

Troubleshooting

Control Panel ....................................................................................................... 19 Bi-directional Adjustment Function ...................................................................... 19 EEPROM Initialization ......................................................................................... 20 Main Components ......................................................................................... 21 C272MAIN Board ................................................................................................ 22 Printer Mechanism .............................................................................................. 23

Overview ...................................................................................................... 40 Troubleshooting Information ........................................................................ 40 Printhead ............................................................................................................. 40 Sensors ............................................................................................................... 40 Motors ................................................................................................................. 40 Error Codes with Indicators and Buzzer .............................................................. 40 Unit Level Troubleshooting ........................................................................... 41 Repairing the C165 PSB/PSE Board .............................................................. 41 Repairing the C272MAIN Board ..................................................................... 41 Repairing the Printer Mechanism .................................................................. 43

Operating Principles

Maintenance

Parallel Interface (Forward Channel) .................................................. 18 Parallel Interface (Reverse Channel) ................................................. 18 Operation Instruction .................................................................................... 19

Control Circuit .............................................................................................. 25 Overview of the Control Circuit Operation ........................................................... 25 System Reset Circuit ........................................................................................... 26 Printhead Driver Circuit ....................................................................................... 27 CR Motor Driver Circuit ....................................................................................... 28 PF Motor Driver Circuit ........................................................................................ 28 EEPROM Control Circuit ..................................................................................... 29 Sensor Circuit ...................................................................................................... 29

Appendix EEPROM Address Map ................................................................................. 47 Connector Summary ..................................................................................... 51 Component Layout ....................................................................................... 53 Circuit Diagram ............................................................................................ 55

PRODUCT DESCRIPTION

LQ-2180

Revision A

1.1 Specifications

1.1.2 Accessories

The LQ-2180 is a revised model of the already existing LQ-2170. Since the specifications for the both products are mostly common except for the LQ-2180’s improved features such as printing speed and copy capability, the information included in this section is limited to the items that are specific to LQ-2180. For the rest of the information, refer to the LQ-2170 Service Manual.

1.1.1 Features † Printing speed „ High speed draft:

480 cps

„ Draft:

360 cps

„ LQ:

120 cps (at 10 cpi)

† Character tables „ Standard version:

13 tables

„ NLSP version:

38 tables

† Items included in the printer carton Table 1-1. Items Included in the Printer Items User’s manual

1

Driver disk

1

Ribbon cartridge

1

Power supply cable (230 V version)

1

† Consumable items Table 1-2. Items Included in the Printer Items

† Bi-directional Interface

S015086

Ribbon pack

S010033

† Optional items: Additional items are shown in the table below: Table 1-3. Items Included in the Printer Items

„ 1 original + 5 copies

Product Description

Part Number

IEEE-1284 parallel I/F card

C82345∗

Ethernet I/F card

C82357∗ / C82362∗ / C82363∗ / C82363∗ (See NOTE below.) / C82364∗

„ Optional Type-B I/F Level 2 supported † Copy capability

Part Number

Ribbon cartridge

† Reliability „ Mean print volume between failure: 23 million lines (except printhead)

Quantity

NOTE: When you use Ethernet interface card C82363∗, you need to attach the optional interface adapter (C82525*) to the interface card.

Specifications

8

LQ-2180

Revision A

1.1.3 Printing Specifications † Copy capability:

1.1.4 Paper Handling

1 original + 5 copies

This section only describes the release lever setting, adjust lever setting, and some other specifications which are specific to LQ-2180.

For the rest of the specifications, see the LQ-2170 Service Manual.

† Printing speed and printable column (See the table below.)

Table 1-4.

Print Speed and Corresponding Printable Columns Printing mode

Character pitch

High speed draft

Draft

Printable columns

† Feeding method

Printing speed (cps)

„ Friction feed (front, rear)

Normal

Copy

„ Push tractor feed (front lever)

10 cpi

136

480

320

„ Push & Pull tractor feed (front, rear)

10 cpi

136

360

240

„ Pull tractor feed (front, rear, bottom)

12 cpi

163

431

286

15 cpi

204

539

358

17 cpi

233

308

205

20 cpi

272

359

239

10 cpi

136

120

80

12 cpi

163

143

96

15 cpi

204

179

120

17 cpi

233

204

137

20 cpi

272

238

159

Draft condensed

LQ

† Feed speed „ Normal mode:

Same as for LQ-2180

„ Copy mode:

1/6 inch feed = 45 m sec Continuous feed =0.092 MPW (m/second) 3.6 IPS (inches/second)

LQ condensed

NOTE: When the power supply voltage drops to the lower limit, the printer stops printing and then resumes printing remaining on that line more slowly than before.

NOTE: When the head temperature rises to the upper limit, the printer stops printing. When the head temperature falls to the normal level, the printer starts printing again more slowly than before.

NOTE: The maximum printable width is 13.6 inch (345.44 mm).

Product Description

Specifications

9

LQ-2180

Revision A

† Release lever:

† Adjust lever:

See the following table.

Table 1-5. Release Lever Settings Lever Position

Paper path / Feeder

See the following table.

Table 1-6. Adjust Lever Setting Position

Paper / Media

Paper Thickness (inch)

Setting Position

Minimum

Maximum

0

0.0024

0.0047

over 0.006 up to 0.12

1

0.0047

0.0074

over 0.12 up to 0.19

Paper Thickness (mm)

Manual insertion (front)

Cut sheet (Single sheet & Multi part), Card

Manual insertion (rear)

Cut sheet (Single sheet & Multi part), Card, Envelope Cut sheet (Single sheet & Multi part), Card, Envelops

2

0.0074

0.0102

over 0.19 up to 0.26

CSF Bin 1

3

0.0102

0.0126

over 0.26 up to 0.32

CSF Bin 2

Cut sheet (Single sheet)

4

0.0126

0.0141

over 0.32 up to 0.36

Roll paper holder

Roll paper

5

0.0141

0.0157

over 0.36 up to 0.40

Push tractor feed (front)

Continuous paper (Single sheet & Multi part), Continuous paper with labels

6

0.0157

0.0173

over 0.40 up to 0.44

Push & Pull tractor feed (front)

Continuous paper (Single sheet & Multi part), Continuous paper with labels

7

0.0173

0.0181

over 0.44 up to 0.46

Push tractor feed (rear)

Continuous paper (Single sheet & Multi part)

Push & Pull tractor feed (rear)

Continuous paper (Single sheet & Multi part)

Pull tractor feed (front)

Continuous paper (Single sheet & Multi part), Continuous paper with labels

Pull tractor feed (rear)

Continuous paper (Single sheet & Multi part)

Pull tractor feed (bottom)

Continuous paper (Single sheet & Multi part), Continuous paper with labels

Friction

Front tractor

Rear tractor

Full release

Product Description

Specifications

10

LQ-2180

Revision A

1.1.5 Paper Specifications

Table 1-8. Cut Sheet (Multi Part) Front Entry

This section provides paper specifications for the LQ-2180.

Table 1-7. Cut Sheet Front Entry

Rear Entry

Minimum

Maximum

Minimum

Maximum

Width

(inch) (mm)

3.9 100

16.5 420

3.9 100

16.5 420

Length

(inch) (mm)

5.8 148

16.5 420

3.9 100

16.5 420

Thickness

(inch) (mm)

0.0025 0.065

0.0055 0.14

0.0025 0.065

0.0055 0.14

Weight

(g/m2) (lb.)

52 14

90 24

52 14

90 24

Quality

Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.

Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.

Rear Entry

Minimum

Maximum

Minimum

Maximum

Width

(inch) (mm)

3.9 100

16.5 420

3.9 100

16.5 420

Length

(inch) (mm)

5.8 148

16.5 420

3.9 100

16.5 420

Copies Total Thickness Weight (one sheet of multi part)

1 original + 5 copies

1 original + 5 copies

(inch) (mm)

0.0047 0.12

0.018 0.46

0.0047 0.12

0.018 0.46

(g/m2) (lb.)

40 12

58 15

40 12

58 15

Quality

Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.

Jointing

Line glue at the top or one side of form.

Line glue at the top of form.

NOTE: Printing on recycled paper is available only under normal temperature and humidity conditions.

Product Description

Specifications

11

LQ-2180

Revision A Table 1-9. Card

Table 1-10. Envelope

Front Entry

Rear Entry

Front Entry

Minimum

Maximum

Minimum

Maximum

(inch) (mm)

3.9 100

7.8 200

3.9 100

7.8 200

Length

(inch) (mm)

5.8 148

7.8 200

5.8 148

7.8 200

Thickness

(inch) (mm)

0.0087 0.22

0.0087 0.22

(g/m2) (lb.)

192 51

192 51

Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.

Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.

Width

Weight

Quality

Minimum

Maximum ---

6.5 165

Length

(inch) (mm)

---

3.6 92

Width

(inch) (mm)

---

9.5 241

Length

(inch) (mm)

---

4.1 105

(inch) (mm)

---

---

Total Thickness

(g/m2) (lb.)

---

0.0063 0.16

45 12

---

NOTE: When the longer side of A6 card is horizontally, it should be inserted from the rear entrance.

---

0.020 0.52

The difference of thickness at the printable area is within 0.0098 inch (0.25mm).

---

Quality

Maximum

(inch) (mm)

Envelop (No. 10)

Weight

Minimum

Width Envelop (No. 6)

NOTE: Printing on recycled paper is available only under normal temperature and humidity conditions.

Rear Entry

90 24

BOND paper, plain paper or AIRMAIL No glue at a flap Not curled, not folded, not crumpled

NOTE: Printing on envelope is available only under normal temperature and humidity conditions.

NOTE: Envelopes should be inserted from rear entrance only.

NOTE: Set the longer side of envelope horizontally.

Product Description

Specifications

12

LQ-2180

Revision A

Table 1-11. Continuous Paper (Single sheet and Multi Part) Front Entry

Rear Entry

Table 1-12. Continuous Paper with Labels

Bottom Entry

Front Entry

Bottom Entry

Rear Entry

Min.

Min.

Min.

Min.

Max.

Min.

Max.

Min.

Max.

Width

(inch) (mm)

4 101.6

16 406.4

4 101.6

16 406.4

4 101.6

16 406.4

Label size

Length (one page)

(inch) (mm)

4 101.6

22 558.8

4 101.6

22 558.8

4 101.6

22 558.8

Base sheet width

1 original + 5 copies

Copies

1 original + 5 copies

1 original + 5 copies

Max.

Max.

See the figure below

See the figure below

(inch) (mm)

4 101.6

16 406.4

4 101.6

16 406.4

---

---

Base sheet length (one page)

(inch) (mm)

4 101.6

22 558.8

4 101.6

22 558.8

---

---

---

---

Total Thickness

(inch) (mm)

0.0025 0.065

0.018 0.46

0.0025 0.065

0.018 0.46

0.0025 0.065

0.018 0.46

Base sheet thickness

(inch) (mm)

0.0028 0.07

0.0035 0.09

0.0028 0.07

0.0035 0.09

Weight (not multi part)

(g/m2) (lb.)

52 14

82 22

52 14

82 22

52 14

82 22

Total thickness

(inch) (mm)

0.0063 0.16

0.0075 0.19

0.0063 0.16

0.0075 0.19

Label weight

(g/m2) (lb.)

Weight (g/m2) (one sheet (lb.) of multi part)

40 12

58 15

40 12

58 15

40 12

58 15 Quality

Quality

Plain paper, Recycled paper, Carbonless multi part paper

Jointing

Point glue or paper staple (both side)

Max.

68 17

68 17

---

---

AVERY CONTINUOUS FORM LABELS, AVERY MINI-LINE LABELS or the same quality labels

NOTE: Printing on labels si available only under normal temperature and humidity condition.

NOTE: The base sheet of labels must be continuous paper.

NOTE: Continuous paper with labels should be inserted from the front or bottom entrance.

2.5 inch (63.5 mm) min.

15/16inch (23.8 mm) min.

Label

R 0.1 inch (2.5 mm) min.

Figure 1-1. Printable Area - Label

Product Description

Specifications

13

LQ-2180

Revision A Table 1-13. Roll Paper Front Entry Minimum

Maximum

Rear Entry Minimum

Maximum

Width

(inch) (mm)

---

8.5 216

Length

(inch) (mm)

---

---

Thickness

(inch) (mm)

---

---

0.0028 0.07

0.0035 0.09

Weight

(g/m2) (lb.)

---

---

52.3 14

82 22

Quality

Product Description

---

Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.

Specifications

14

LQ-2180

Revision A

1.1.6 Electrical Specifications The electrical specifications for the LQ-2180 is the same as for the LQ2170 except for the items below. For information on other items, see the LQ-2170 Service Manual. † Input voltage range „ 120 V version:

AC 99 to 132 V

„ 230 V version:

AC 198 to 264 V (same as for the LQ-2170

† Rated current

† 230 V version „ Safety standards:

EN60950 (TUV)

„ EMI:

EN55022 (CISPR pub.22) class B AS/NZS 3548 class B

1.1.9 CE Marking † 230 V version „ Low voltage directive 73/23/EEC:EN60950

„ 120 V version:

1.0 A (maximum = 4.0 A)

„ 230 V version:

0.5 A (maximum = 2.0 A)

„ EMD Directive 89/336/EEC:

† Power consumption (for 120 V and 230 V versions) „ Approximately 52 W (ISO/IEC10561 Letter pattern) (Energy Star compliant) † Acoustic noise:

1.1.7 Reliability † MVBF *1:

24 million lines (except print data)

† MTBF:

10000 POH

† Printhead life:

400 million strokes/wire

EN55022 class B EN61000-3-2 EN61000-3-3 EN50082-1 IEC801-2 IEC801-3 IEC801-4

Approximately 54 db(A) (ISO 7779 pattern)

*1: Mean print volume between failure

1.1.8 Safety Approvals † 120 V version „ Safety standards:

UL1950, CSA C22.2 No. 950

„ EMI:

FCC part15 subpart B class B CSA C108.8 class B

Product Description

Specifications

15

LQ-2180

Revision A

1.2 Firmware Specifications

International character set (14 countries and legal)

This section describes the firmware specifications for the LQ-2180.

1.2.1 Control Codes and Fonts † Control codes:

ESC/P2 and IBM 2391 Plus Emulation

† Character tables: Standard version (13 character tables) Italic table PC 860 (Portuguese) PC 850 (Multilingual) PC 437 (US, Standard Europe) PC 861 (Icelandic) PC 863 (Canadian-French) PC 865 (Nordic) Abicomp BRASCII Roman 8 ISO Latin 1 PC 858 ISO 8859-15 NLSP version (38 character tables) Italic table PC437 (US, Standard Europe) PC437 Greek PC850 (Multilingual) PC852 (East Europe) PC853 (Turkish) PC855 (Cyrillic) PC857 (Turkish) PC864 (Arabic) PC866 (Russian) PC869(Greek) MAZOWIA (Poland)Code MJK (CSFR) ISO 8859-7 (Latin/Greek) lSO Latin 1T (Turkish) Bulgaria (Bulgarian) PC774 (LST 1283:1993) Estonia (Estonia) ISO 8859-2 PC866 LAT. (Latvian) PC866 UKR (Ukraina)PC860 (Portuguese) PC861 (Icelandic) PC865 (Nordic) PC APTEC(Arabic) PC708 (Arabic) PC720 (Arabic) PCAR864 (Arabic) PC863 (Canadian-French) Abicomp BRASCII Roman 8 ISO Latin 1 Hebrew7* Hebrew8* PC862 (Hebrew)* PC 858 lSO 8859-15

U.S.A. U.K. Italy Norway Latin America

France Denmark 1 Spain 1 Denmark 2 Korea

Germany Sweden Japan Spain 2 Legal

* The international and legal characters are these 12 codes: 23H, 24H, 40H, 5BH, 5CH, 5DH, 5EH, 60H, 7BH, 7CH, 7DH, 7EH † Typeface Bit map fonts EPSON Draft EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script EPSON OCR-B EPSON Orator EPSON Orator-S EPSON Script C

10 CPI, 12 CPI, 15CPI 10 CPI, 12 CPI, 15CPI, Proportional 10 CPI, 12 CPI, 15CPI, Proportional 10 CPI, 12 CPI, 15CPI 10 CPI, 12 CPI 10 CPI 10 CPI 10 CPI 10 CPI Proportional

Scalable fonts EPSON Roman EPSON Sans Serif EPSON Roman T EPSON Sans Serif H

10.5 pt., 8 pt., - 32 pt. (every 2 pt.)

10.5 pt., 8 pt., - 32 pt. (every 2 pt.)

10.5 pt., 8 pt., - 32 pt. (every 2 pt.)

10.5 pt., 8 pt., - 32 pt. (every 2 pt.)

Bar codes EAN-13, UPC-A Code 128

EAN-8 UPC-E POSTNET

Interleaved 2 of 5 Code 39

* Not displayed in the Default setting mode.

Product Description

Firmware Specifications

16

LQ-2180

Revision A

Table 1-14. Character Tables and Available Typefaces Character Tables

Standard version

Italic table*1

PC 437 (US, Standard Europe)*1

PC 850 (Multilingual)*1 PC 861 (Icelandic)*1 PC 863(Canadian-French)*1 Abicomp*1 Roman 8 PC 858

PC 860 (Portuguese)*1 PC 865 (Nordic)*1 BRASCII*1 ISO Latin 1 ISO 8859-15

Italic table*1 PC 850 (Multilingual)*1 PC 861 (Icelandic)*1 PC 865(Nordic)*1 Abicomp*1 lSOLatin1 ISO 8859-15

PC 437(US, Standard Europe)*1 PC 860(Portuguese)*1 PC863 (Canadian-French)*1 BRASCIl*1 Roman8 PC 858

PC 864 (Arabic)

NLSP version

PC437Greek PC 853 (Turkish) PC 857 (Turkish) PC 869 (Greek) Code MJK (CSFR) lSO Latin 1T (Turkish) PC774 (LST 1283: 1993) 1SO 8859-2 PC 866 UKR (Ukraina)

PC 852 (East Europe) PC 855 (Cyrillic) PC 866 (Russian) MAZOWIA (Poland) lSO 8859-7 (Latin/Greek) Bulgaria (Bulgarian) Estonia (Estonia) PC 866 LAT. (Latvian)

PC APTEC (Arabic) PC 720 (Arabic)

PC 708 (Arabic) PCAR864 (Arabic)

Hebrew7*2 Hebrew 8*2 PC862 (Hebrew)*2

Bit map font

Scaleable font

EPSON Draft EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script EPSON OCR-B EPSON Orator EPSON Orator-S EPSON Script C

EPSON Roman EPSON Sans Serif EPSON Roman T EPSON Sans Serif H

EPSON Draft EPSON Roman

(Not supported)

EPSON Draft EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script

(Not supported)

EPSON Draft (Arabic) EPSON Roman EPSON Sans Serif

(Not supported)

EPSON Draft (Hebrew) EPSON Roman (Not supported) EPSON Courier

*1: ESC R command is effective on these character tables. *2 Not displayed in the default setting mode.

Product Description

Firmware Specifications

17

LQ-2180

Revision A

1.2.2 Interface Specifications

1.2.2.2 Parallel Interface (Reverse Channel) † Transmission mode:

IEEE-1284 nibble mode

† Synchronization:

Refer to the IEEE-1284 specification

1.2.2.1 Parallel Interface (Forward Channel)

† Handshaking:

Refer to the IEEE-1284 specification

† Transmission mode:

IEEE-1284 compatibility mode

† Signal level:

IEEE-1284 level 1 device

† Signal level:

TTL compatible (IEEE-1284 level 1 device)

This section only provides information which is specific to the LQ-2180.

For other information, refer to the LQ-2170 Service Manual.

† Pin assignment:

† Data transmission timing: Refer to the IEEE-1284 specification † Device ID:

The pin assignment (forward channel) is the same as for the LQ-2170 except for the functions of the pins below:

[00H][4DH] MFG: EPSON; CMD: ESCPL2,PRPXL24,BDC; MDL: LQ-2180; CLS: PRINTER; DES: EPSON[SP]LQ-2180;

Pin No. Function This line is pulled up to +5 V through 3.9 k Ω resistor.

18 35

This line is pulled up to +5 V through 1.0 k Ω resistor. † Pin assignment:

The pin assignment (reverse channel) is the same as for the LQ-2170 except for the functions of the pins below:

Pin No. Function This line is pulled up to +5 V through 3.9 k Ω resistor.

18 35

Product Description

Firmware Specifications

This line is pulled up to +5 V through 1.0 k Ω resistor.

18

LQ-2180

Revision A

1.3 Operation Instruction This section provides information on the LQ-2180 control panel buttons, LED, and operations. Since the layout and functions of the control panel are mostly common to those of LQ-2170, this section only shows the information that is specific to LQ-2180. For other information, see LQ2170 Service Manual.

1.3.1 Control Panel The control panel of this printer consists of the power switch, 6 non-lock type buttons, and 10 LEDs. The appearance of the control panel is shown in the figure below.

(6 ) F o n t

D ra ft R o m a n S a n s s e rif C o u rie r P re s tig e S c rip t O th e rs

P itc h 1 0 c p i 1 2 c p i 1 5 c p i 1 7 c p i 2 0 c p i P S

T e a r O ff/B in T e a r O ff B in 1 B in 2 C a rd

(2 )

Turning on the printer while pressing panel buttons executes the functions below: Table 1-15. Operations at Power On No.

Buttons

Function

1

(5)

LQ self test

2

(4)

Draft self test

3

(2)

Default setting

4

(4) + (5)

Data dump

5

(1) + (3)

EEPROM clear

6

(3) + (5)

Clear EEPROM for Driving Line count for ribbon change timing

7

(6)

Bi-d adjustment

O p e ra te 3 se c .

M ic ro A d ju s t

L F /F F

(1 )

P a p e r O u t

P a u se

† Operation at power on

(3 )

NOTE: The area reset by the EEPROM clear is as shown in the next section. This operation, however, does not affect such adjustment values as Bi-d adjustment and TOP PE sensor adjustment.

L o a d /E je c t

(4 )

Figure 1-2. Control Panel

(5 )

(7 )

1.3.2 Bi-directional Adjustment Function In this mode, you can adjust the bidirectional alignment for the following three modes: 1. Bi-directional adjustment for draft mode 2. Bi-directional adjustment for draft copy mode 3. Bi-directional adjustment for LQ mode

Product Description

Operation Instruction

19

LQ-2180

Revision A

1.3.3 EEPROM Initialization Areas reset by EEPROM clear operation (described in Section 1.3.1) are as shown in the following tables: Table 1-16. Initialization Area for EEPROM (1/2) No.

Item

Factory setting

Table 1-17. Initialization Area for EERPOM (2/2) No.

Item

Factory setting

21

Skip over perforation

Off

22

High speed draft

On

1

Character table selection

PC437

23

Input buffer

On

2

Page length (rear tractor)

11 inch

24

Software

ESC/P2

3

Page length (front tractor)

11 inch

25

0 slash

Off

4

Page length (CSF Bin 1)

22 inch

26

Buzzer

On

5

Page length (CSF Bin 2)

22 inch

27

Roll paper

Off

6

TOF adjustment value (rear tractor)

8.5 mm

28

Auto CR (IBM)

Off

7

TOF adjustment value (front tractor)

8.5 mm

29

A. G. M. (IBM)

Off

8

TOF adjustment value (CSF Bin 1)

8.5 mm

30

Tear-off adjustment value

0 clear

9

TOF adjustment value (CSF Bin 2)

8.5 mm

31

Other font selection

Roman T

10

TOF adjustment value (rear manual insertion)

8.5 mm

32

Bin select

Friction Bin 1 or Tractor not Tear off

11

TOF adjustment value (front manual insertion)

8.5 mm

33

Manual insertion wait time

2 or 3 sec.

34

Tear-off wait time

3 sec.

12

Bottom margin (rear tractor)

11 inch

35

Copy mode

Off

13

Bottom margin (front tractor)

11 inch

36

Black paper mode

Off

14

Font selection

Roman

37

Paper width measure

On

15

Pitch selection

10 cpi

38

TOF minimum value

4.2 mm

16

Print direction setting

Bi-D

39

I/F timing data

BUSY

17

I/F mode selection

Auto

40

Paper edge length

0 clear

18

Auto I/F wait time setting

10 sec

41

Page length (rear manual insertion)

22 inch

19

Auto line feed

Off

42

Page length (front manual insertion)

22 inch

20

Auto tear off

Off

Product Description

Operation Instruction

20

LQ-2180

Revision A

1.4 Main Components The main components for the LQ-2180 are as follows. They are designed for easy disassembly and repair work. † C272MAIN Board † C165 PSB/PSE Board † C165 PNL Board † Printer Mechanism † Housing (upper and lower cases)

Figure 1-3. Main Components for LQ-2180

Product Description

Main Components

21

LQ-2180

Revision A

1.4.1 C272MAIN Board The C272MAIN Board is composed of the CPU (TMP96C141), gate array (E05B42), program ROM that integrates the CG, EEPROM, and 24 transistors used to drive the printhead.

H e a d D r iv e T R A N S IS T O R

IC 1 2 A 2 9 1 7 S L A 7 0 2 4 M

IC 1 0 P -R O M

C N 1

Note the C272MAIN Board has the following 4 versions; 1) Standard version, 2) NLSP version, 3) Korean version, and 4) Thai version.

However, ICs are attached in two different ways, which varies depending on the version, as shown in the red boxes in the figure below.

(4 M )

IC 7 C G -R O M

(8 M )

C N 1 7 C N 1 4 C N 3 IC

3

G A T E A R R A Y E 0 5 B 4 2

C N 4

C N 6

C N 8 C N 7

IC 7

C G

IC 6 C N 1 5

C N 1 2 C N 9

P ro g ra m & C G ( 8 M b it) R O M (8 M

P ro g ra m

(4 M

b it)

IC 1 0

(8 M

b it)

IC 6

b it)

N o t M o u n te d

C N 1 1 C N 1 0 C N 1 6

C N 5

IC 1 0

( S ta n d a r d /N L S P /T h a i)

C G

R O M

(K o re a n )

C N 1 3

IC 6 C N 2 ( K o r e a n V e r s io n O n ly )

IC 5 1 C P U E E P R O M T M P 9 6 C 1 4 1 IC

Figure 1-4. C272MAIN Board

Product Description

Main Components

22

LQ-2180

Revision A

1.4.2 Printer Mechanism Appearance of the printer mechanism for the LQ-2180 is the same as for the LQ-2170. However, please be aware of the printhead’s incompatibility with the LQ-2180.

Product Description

Main Components

23

&+$37(5

5

OPERATING PRINCIPLES

LQ-2180

Revision A

2.1 Control Circuit The control circuit of the LQ-2180 is composed of the C272MAIN board and the C165PNL board. This section describes the operations of the major components in the circuit.

The following figure shows the data flow from the host computer to the printhead. Data sent from the host computer is converted to image data and transmitted to the printhead through the gate array.

2.1.1 Overview of the Control Circuit Operation The printer's control circuit includes a CPU (TMP96C141AF/IC4) that runs at 19.66 MHz, a gate array (E05B42/IC3), a 1M bit PS-RAM (IC8), a 8M bit CG-ROM (IC6), and so on. The figure below shows the block diagram for the control circuit.

C P U T M P 9 6 C 1 4 1

O p tio n I/F

R A M

P a r a lle l I/F

C 1 6 5 P N L b o a rd

T r.(Q 4 -2 5 ) D a ta

IC 1 0 (8 M

P r in t d a ta c o n v e r s io n 1

L in e E d it B u ffe r

C N 9

IC 7 (n o t m o u n te d )

D a ta la tc h a n d d a ta o u tp u t

IC 5 (A T 9 3 C 4 5 )

C G )*1

P r in t d a ta c o n v e r s io n 2

Im a g e B u ffe r

IC 4 (T M P 9 6 C ) Im a g e d a ta tra n s fe r

P S -R A M )

A d d re s s

IC 8 (1 M

G a te A rra y E 0 5 B 4 2

IC 3 (E 0 5 B 4 2 )

P -R O M )

IC 6 (8 M

In p u t B u ffe r

C N 8

C N 1 ( P a r a lle l I/F )

C N 2 (T y p e B I/F )

C N 3 (fro m IC 1 2 (A 2 9 1 7 )

C N 1 0 (P F )

IC 1 1 (S L A 7 0 2 4 M )

C N 1 1 (C R )

C N 1 4 ( S e r ia l I/F ) C N 1 7 (F a n ) C N 6 (P E -F ro n t)

P S )

IC 2 (P S T 5 9 2 )

C N 5 (P E -R e a r)

C N 1 6 ( R e le a s e 2 )

C N 7 (T o p )

C N 1 2 ( R e le a s e 1 )

C N 4 (C R H P )

C N 1 3 (P G 1 )

P r in th e a d d r iv e c ir c u it

Figure 2-2. Data Flow

* 1 : O n ly fo r K o r e a a n d T h a i v e r s io n s

Figure 2-1. Control Circuit Block Diagram

Operating Principles

Control Circuit

25

LQ-2180

Revision A

The following table lists the each function of the main components of the C272 MAIN board.

Table 2-1. Functions of the Main Board IC Name

Location

Detects conditions of various sensors and controls phase change for the CR motor.

IC3

Control the functions below: • Memory management • Printhead drive • Phase change for the PF motor

EEPROM

IC5

Contains such information as the factory setting values for the various adjustments and the operational record of the printer.

ROM

IC10

Contains the control program.

RAM

IC8

Manages the following functions: • Buffer used to receive data • Data Extension • CPU working area

CG-ROM

IC7

Contains font data.

SLA7024M

IC11

Constant current drive IC for CR Motor

A2917

IC12

Constant current drive IC for PF Motor

Gate Array

Operating Principles

The reset IC (IC2) outputs a reset signal under the conditions below to feed back the status to the CPU and the gate array: † The printer is turned on or off.

Function

IC4

CPU

2.1.2 System Reset Circuit

† The voltage level drops due to abnormal condition.

Receiving the signal, the CPU and the gate array immediately shut off the operation of each IC to prevent the printer from falling into abnormal status caused by unstable power supply.

P S T 5 9 2 (IC 2 ) 1 V o u t M R E S

2

V c c

3

G N D

4

2 3

C P U (IC 4 ) /R S T

7 4

G .A (IC 3 ) /R S T

Figure 2-3. Reset Circuit

Control Circuit

26

LQ-2180

Revision A

2.1.3 Printhead Driver Circuit Printhead drive begins with monitoring the 35 V line currently applied.

This function enables the printer to change the period of time for applying current to the printhead slightly depending on the condition. As a result, the printer can output image at a constant density. The Pin 74 (AN1) on the CPU monitors the 35 V line’s condition.

E 0 5 B 4 2 (IC 3 )

Also, when a high-duty job is in process, the temperature inside the printhead will rise, and if the job is continued at a high temperature, it may damage the coil. Therefore, the Pin 73 (AN0) on the CPU monitors the temperature inside the printhead. With this operation called protection operation for hot head, printing is stopped when the temperature reaches the standard level 1. As the temperature drops to the standard level 2, printing begins again at a lower speed, and then at a normal speed when the temperature lowers to the standard level 3.

Once the current flows into the head drive resistor, the coil for the corresponding pin is activated with the current. The current flown into the coil is converted into energy used to rush the pin. Note there is possibility that some unused energy returns to the board, which may damage the head driver transistor. For this reason, a zener diode is attached for each transistor to ground the current so the voltage over the standard level (15 V) does not directly return to the transistor.

Operating Principles

C N 9 # 2 ,3 ,6 ,7 ,1 0 ,1 1 ,1 4 , 1 5 ,1 8 ,1 9 ,2 2 ,2 3

Control Circuit

H D 1

Z D 2 -2 5

T r 4 -2 7 H D 2 4

A N 0 A N 1

7 3

1 6

C N 8 # 1 ,4 ,5 ,8 ,9 ,1 2 ,1 3 ,1 6 , 1 7 ,2 0 ,2 1 ,2 4 H T M P

7 4

3 5 V

Figure 2-4. Printhead Drive Circuit

27

LQ-2180

Revision A

2.1.4 CR Motor Driver Circuit

2.1.5 PF Motor Driver Circuit

The CPU (IC4) directly controls the phase change of the CR motor.

SLA7024M (IC11), the driver IC for the CR motor, performs bi-polar constant current drive to detects the amount of current flowing into the motor and chops the current supplied. With this operation, current flowing into the motor coil is regulated.

The gate array (IC3) manages the PF motor control. The driver IC for the PF motor, which enables the constant current drive, receives the phase change signal directly from the gate array and determines the phase to which current flows.

The PF motor driver circuit is as shown below:

The CR motor driver circuit is as shown below:

C P U (IC 4 )

6 1

P G O 0

2 5 3

1 7

P G O 1 P G O 2 P G O 3

E 0 5 B 4 2 (IC 3 )

S L A 7 0 2 4 M (IC 1 1 )

4

1 6

IN A IN -A

A

C N 1 1

P H A S E A

C R A

P H A S E B

C R -A

-A B

C R B

P F I1 A

IN -B

-B

C R -B

P F I0 B P F I1 B

1 1 9

2 6 2

4

2 1 3

2 3 2 4

A 2 9 1 7 (IC 1 2 )

IN A

A

IN -A

-A

C N 1 1 6

C R A 3

IN B

B

IN -B

-B

1 8 2 1

C R -A C R B C R -B

Figure 2-6. PF Motor Driver Circuit

Figure 2-5. CR Motor Driver Circuit

Operating Principles

4 3

1

P F I0 A

IN B

1 2 2

Control Circuit

28

LQ-2180

Revision A

2.1.6 EEPROM Control Circuit

2.1.7 Sensor Circuit

When the printer power is turned off, the EEPROM stores the factory settings and values in the areas that are not cleared in the user setting mode and also writes those values in the RAM. This sequence is managed by the CPU (IC4), which transmits data in the serial format.

Unlike the LQ-2170, both the CPU and the gate array monitor and control the corresponding sensors’ conditions. Note analog voltages are all monitored by the CPU ports.

The EEPROM control circuit is as shown below: + 5 V

+ 5 V

R e a r P E S e n s o r

+ 5 V

7 0

C P U (IC 4 )

7 6 P 5 3

P 4 0

+ 5 V H P S e n s o r R e le a s e S e n s o r 2

C P U (IC 4 ) P 7 0 P 7 1 P 7 2 P 7 3

A T 9 3 C 4 6 (IC 5 )

9 1

1 2

6 8

R e le a s e S e n s o r 1

P 3 6

2

C S

1 0 1 1

F ro n t P E S e n s o r

3

S K

P 2 7 P W ,T O P S e n s o r

7 5

IN T 7

P G

S e n s o r

1 8

C o v e r O p e n S e n s o r

G A (IC 3 )

D I 4

A N 2

6 1

+ 5 V

D O + 5 V

Figure 2-7. EEPROM Control Circuit

+ 5 V

R e le a s e 1 R e le a s e 2

1 1 6 1 1 7

Figure 2-8. Sensor Circuit

Operating Principles

Control Circuit

29

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6

DISASSEMBLY AND ASSEMBLY

LQ-2180

Revision A

The contents of the chapter “Disassembly and Assembly” is the same as for the LQ-2170 Service Manual.

Disassembly and Assembly

31

&+$37(5

7

ADJUSTMENT

LQ-2180

Revision A

4.1 Overview

NOTE:

The adjustment items required for the LQ-2180 are the same as for the LQ-2170. Therefore, see Table 4-1 in the LQ-2170 Service Manual and perform any necessary adjustment after disassembling/assembling the printer.

C A U T IO N

If you omit this operation, the printer will perform Uni-D print instead of Bi-D.

5. Double-click “LQSERIES.EXE”. The program starts up and the screen below appears.

< * > < * > < * > E P S O N S ID M

Though the conditions for each adjustment are the same as for the LQ-2170, the adjustment program used for the LQ-2180 is different. Therefore, observe the instructions given in the following sections.

b o o t p ro c e s s < *> < *> < *>

P le a s e s e le c t th e m o d e l n a m e .

L Q -2 1 8 0 L Q -2 5 8 0 H L Q -2 0 8 0 F X -9 8 0

4.1.1 Pre-operation for the Adjustment Program 1. Get a continuous paper. (136-column paper should be used to avoid printing on the platen.)

C A U T IO N

P r in te r S e r v ic e P r o g r a m

„ Do not use cut sheet for the Bi-D adjustment. Since the Bi-D adjustment has to be performed with the top and bottom edges of the sheet firmly set in the paper path, use of cut sheet will not provide accurate adjustment. „ Use single continuous paper. „ Adjustment program for serial dot matrix printer does not run without any paper loaded. So, be sure to turn the printer on first and then load paper.

E S C :Q u it

U P /D o w n :S e le c t

E N T E R :D e te r m in e

Figure 4-1. LQSERIES.EXE Initial Screen 6. Move the cursor to “LQ-2180” and press the Enter key.

7. The following screen appears.

2. Set the release lever to the continuous paper position.

3. Connect the printer and the PC and turn the printer on.

4. Press the Load/Eject button to send the paper to the stand-by position. Then press the LF/FF button more than 10 times until the leading edge of the paper is completely out of the printer.

Adjustment

Overview

33

LQ-2180

Revision A

< * > < * > < * > E P S O N

S ID M

E S C :Q u it

P r in te r S e r v ic e P r o g r a m

< * > < * > < * > E P S O N S ID M

b o o t p r o c e s s < * > < * > < * >

P r in te r S e r v ic e P r o g r a m

b o o t p ro c e s s < *> < *> < *>

S e le c t th e d e s tin a tio n .

D o y o u s ta r t th e S e r v ic e P r o g r a m ?

S ta n d a r d N L S P

P e r fo r m (B o o t th is P R O G R A M ) N o (R e -s e le c t m o d e l n a m e ) G o t (C h e c k th is m o d e l n a m e )

U P /D o w n :S e le c t

E S C : Q u it

E N T E R :D e te r m in e

U P /D o w n : S e le c t

E N T E R : D e te r m in e

Figure 4-3. Main Menu Selection Screen Figure 4-2. Destination Selection Screen

10. Select “Perform”. The following screen appears.

8. Check the printer to be adjusted for the destination; NLSP or Standard, then select the destination and press the Enter key.

C A U T IO N

C A U T IO N

Be sure to select the proper destination. If you select “Standard” despite you printer is NLSP version, the printer may not print NLSP characters.

„ Select “No” if you have input a wrong model name in the screen shown in Figure 4-1. „ If you select “Got”, the printer flashes the model name stored in the RAM to the EEPROM once and reads it again.

************** L Q -2 1 8 0

S E R V IC E P R O G R A M

V e r s io n 1 .0

**************

9. The following screen appears. < > < > S E R V IC E IT E M S < > < > 1 . B i-D A d ju s tm e n t 2 . P r in t D a ta o n E E P R O M 3 . S e t o r r e p ly S ta r tin g d a te 4 . T P E R e s e t E S C :Q u it

U P /D o w n :S e le c t

E N T E R :D e te r m in e

Figure 4-4. Main Menu Screen

Adjustment

Overview

34

LQ-2180

Revision A

4.1.2 Bi-D Adjustment This adjustment is made after the main board or the CR motor has been replaced. The purpose of this adjustment is to electrically correct the head wire’s point of impact during Bi-D printing. The adjusted value is stored in the specific address in the EEPROM. Once the value is stored, it will not be erased if the printer is turned off or the EEPROM is reset.

C A U T IO N

C A U T IO N

If the printer is in the emulation mode, characters output for the Bi-D adjustment will be garbled. If so, turn ESC/P2 on using the EEPROM Initialization mode.

„ The value “0” shown in the screen shown in Figure 4-5 is the initial value used in the program, which varies from the one stored in the EEPROM. However, if the main board has been replaced, the value in the EEPROM is replaced with “0”as the initial value. „ The printing pattern below is a sample for the high speed mode. Be sure to perform the adjustment in draft copy mode and LQ mode as well. s p e e d d ra ft m o d e

B i- D d a ta

=

-1

s p e e d d ra ft m o d e

B i- D d a ta

=

-0

s p e e d d ra ft m o d e

B i- D d a ta

=

1

1. Perform the pre-operation. (See Section 4.1.1.)

2. Select “1. Bi-D Adjustment”. The following screen appears.

************** L Q -2 1 8 0

S E R V IC E P R O G R A M

V e r s io n 1 .0

**************

< B i-D a d ju s tm e n t> H ig h s p e e d d r a ft M o d e D ra ft c o p y M o d e L Q M o d e P r e v io u s [E S C ]

P r in t o u t S e le c t s p e e d [S P A C E ] [U p /D o w n ]

=

0 =

0

=

A d ju s t v a lu e [L e ft/R ig h t]

0

Figure 4-6. Bi-D Pattern Sample 4. Output the patterns for the Draft Copy Mode and the LQ Mode, the rest of the three modes in the screen (Figure 4-5). Then check that the vertical lines in the middle row for each mode are aligned. (If no adjustment is needed, you can turn the printer off, not continuing to the next step.)

W r ite to E E P R O M [E N T E R ]

Figure 4-5. Initial Menu of the Bi-D Adjustment 3. Press the Space key to check the current Bi-D setting condition for the High speed draft mode. The printer prints the following pattern.

Adjustment

5. Examine the patterns for the three modes output in the previous steps, and correct the value in the screen shown in Figure 4-5 until the vertical lines for the center value (Data = 0 in Figure 4-6) are aligned.

Overview

35

LQ-2180

Revision A

6. When this adjustment is completed, if you need to perform another adjustment using this program, you can continue without turning off the printer.

4.1.3 TPE Level Reset Make this adjustment when the main board or Top PE Sensor has been replaced. Generally, light level emitted from the photo diode in a photo sensor lowers with age. For this reason, the printer renews the current paper remaining level by detecting the black level of the platen each time the printer is turned on or paper is fed. When the TPE level is reset, FF is written and it approaches 00 as the time goes by. If this operation is not performed, paper out condition may be detected despite paper is set.

1. Perform the pre-operation. (See Section 4.1.1.)

2. Select “TPE Reset” in the main menu screen (Figure 4-4) and press the Enter key. The screen below appears.

************** L Q -2 1 8 0

S E R V IC E P R O G R A M

V e r s io n 1 .0

**************

< R e s e t T o p p a p e r a n d d e te c tio n le v e l> D o y o u w a n t to r e s e t T o p p a p e r -e n d d e te c tio n le v e l?

Y e s N o E S C :P r e v io u s

U P /D o w n :S e le c t

E N T E R :D e te r m in e

Figure 4-7. Screen - TPE Reset 3. Select “Yes” and press the Enter key. FF is written in EEPROM when the printer power is turned off.

Adjustment

Overview

36

LQ-2180

Revision A

4.1.4 Writing the User-characteristic Data [To check the current status]

Use this function to check the specific records of the printer used by your customer. Also, you can renew the starting date using this program. Since there is no standardized service operation using this function, you can use it whenever necessary.

3. Select “Characteristic Status Code” and press the Enter key. The following screen appears.

1. Perform the pre-operation. (See Section 4.1.1.)

C h a r a c te r is tic s ta tu s c o d e

2. Select “Set or Reply Starting Date” and press the Enter key. The screen below appears.

C A U T IO N

1 . S ta r tin g d a te -----> 9 9 / 1 1 1 2 . T o ta l p r in tin g lin e c o u n t(O d d c o u n te r ) ---> 3 5 7 7 lin e 3 . T o ta l p o w e r o n h o u r ---> 4 . T o ta l p r in tin g lin e c o u n t fo r r ib b o n c h a n g e tim in g (T r ip c o u n te r ) ---> 3 5 7 7 lin e s

When using this function, the printer must be in the normally operative condition. Make sure the printer is free from any error conditions such as paper out, fatal error, and so on. Otherwise, the function is not effective.

E S C :P r e v io u s ************** L Q -2 1 8 0

S E R V IC E P R O G R A M

V e r s io n 1 .0

**************

Figure 4-9. Screen - Characteristic Status Code

< * > < * > < * > S e t o r R e p ly S ta r tin g d a te < * > < * > < * > C h a r a c te r is tic s ta tu s c o d e S e t s ta r tin g y e a r / m o n th / d a te

[To renew the Starting Year / Month / Date] 4. Select “Set Starting year / month / date” and press the Enter key.

The following screen appears.

E S C :Q u it

U P /D o w n :S e le c t

E N T E R :D e te r m in e

Figure 4-8. Screen - Set or Reply Starting Date

Adjustment

Overview

37

LQ-2180

Revision A

S e ttin g S ta r tin g Y e a r /M o n th /D a y In p u t fo r m a t:

1 9 9 9 /1 /1

---> 9 9 0 1 0 1

P le a s e in p u t 6 d ig its > >

Figure 4-10. Screen - Setting Starting Year / Month / Date 5. Input a 6-digit data. Be sure to input it correctly since this programs does not perform comparison check with the system timer. If you input a wrong data, start from the beginning.

Adjustment

Overview

38

TROUBLESHOOTING

LQ-2180

Revision A

5.1 Overview

5.2.1 Printhead

This chapter contains flowcharts and checkpoint tables to help you troubleshoot the printer. The checkpoint tables let you identify the faulty part or unit by checking the values or ranges listed for each component.

5.2 Troubleshooting Information This section gives you troubleshooting information to let you test points for replaceable units.

The information in this section is the same as for the LQ-2170.

5.2.2 Sensors The check method, including test pin number and meter reading, for each sensor is the same as for the LQ-2170. However, be careful of the CN 12 and 16 that are not common to the LQ-2170. The change made for LQ-2180 is as shown below.

Table 5-1. Sensor Test Points Sensor Connector Number

Test Pin Number

Test method

Meter reading

CN12 (Release sensor 1)

1: Release 1 2: GND

Place one lead on Pin 1 and the other lead on Pin 2 and check the voltage while toggling the sensor lever.

See the LQ-2170 Service Manual.

CN16 (Release sensor 2)

1: Release 2 2: GND

Same as for CN12

See the LQ-2170 Service Manual.

Other sensors

See the LQ-2170 Service Manual.

5.2.3 Motors The motor test points are the same as for the LQ-2170.

5.2.4 Error Codes with Indicators and Buzzer The Error codes with Indicators and buzzer are the same as for the LQ2170.

Troubleshooting

Overview

40

LQ-2180

Revision A

5.3 Unit Level Troubleshooting The information for this section is the same as for the LQ-2170 except for some points. The points to be changed are as follows:

Table 5-2. Repairing the C272MAIN Board (1/3) Problem

Cause

Checkpoint

Solution

The printer does not operate at all.

Reset IC2 is defective.

Check the voltage waveforms of the VCC signal (CH1: IC2 pin 3) and VOUT signal (CH2: IC2 pin 2) when power is turned on.

Replace IC2.

The PROM (IC10) is not selected.

Check for a change in the signal from HIGH/LOW at pin 22 of IC10.

Replace IC10 (or replace the main board).

The PSRAM (IC8)

Check for a change in the signal from HIGH/LOW at pin 1 of the IC8.

Replace IC8 (or replace the main board).

Point: All flowcharts provided in this section C165 MAIN Board →

272MAIN Board

Point: Flowchart 2-1 CN12

→

CN12 or CN16

5.4 Repairing the C165 PSB/PSE Board The entire information for this section is the same as for the LQ-2170.

5.5 Repairing the C272MAIN Board This section provides instructions to repair the C272 MAIN board assembly. It describes various problems, symptoms, likely causes, and solutions. The checkpoint column provides proper waveforms, resistance values, and other information for each component of C272 MAIN Board.

NOTE: This information is necessary only for servicers who repair to the component level. Servicers who repair to the unit level (including all servicers in the U.S.) can ignore this section.

Troubleshooting

Unit Level Troubleshooting

41

LQ-2180

Revision A Table 5-3. Repairing the C272MAIN Board (2/3)

Problem

Cause

Checkpoint

Solution

Table 5-4. Repairing the C272MAIN Board (3/3) Problem

Cause

Check the oscillator signal at pins 26 or 27 of the CRU1.

The printer does not operate at all.

If the signal is not correct, replace IC4 (or replace the main board).

Otherwise, replace CRU1.

CRU1 is defective.

Check input signal waveform (CH1) at pins 1, 2, 3, and 4 of IC4. Check output signal waveform at pins 8, 1, 18, and 11 of IC11.

IC11 or IC4 is defective.

Carriage operation is abnormal.

IC3 is defective.

Troubleshooting

Check the output signal at pins 68, 69, 70, and 71 of IC3.

If the input signal is not correct, replace IC4 (or replace the main board).

If the output signal is not correct, replace IC11.

If there is no output signal, replace IC3.

Paper feed is abnormal.

IC1 is defective.

IC3 is defective.

IC2 is defective.

Checkpoint • Check input signal waveform at pins 1, 2, 23, and 24 of IC2.

• Check output signal waveform at pins 6, 3, 18, and 21 of IC12.

Solution

If the input signal is not correct, replace IC3. If the input signal is correct and the output signal is not correct, replace the IC12.

• Check the output signal waveform at pin 111 of IC3.

No data is printed.,

A particular dot fails to print.,

If this signal is not output, replace IC3.

IC3 is defective.,

IC3 is defective or one of the head drive transistors is defective (Q4 Q27).

Repairing the C272MAIN Board

• Check the voltage waveform at pin HD1 - HD24 of IC3.

• Check the voltage waveform (CH2) for each transistor.

If the head drive signal is not output, replace IC3. If the head drive signal is output, replace the head drive transistor.

42

LQ-2180

Revision A

5.6 Repairing the Printer Mechanism The information for this section is also the same as for the LQ-2170 except for the point below.

Point: Table 5-8 CN12

Troubleshooting

→

CN12 or CN16

Repairing the Printer Mechanism

43

MAINTENANCE

LQ-2180

Revision A

The contents of the chapter “Maintenance” is the same as for the LQ-2170 Service Manual.

Maintenance

45

APPENDIX

LQ-2180

Revision A

7.1 EEPROM Address Map

Table 7-2. EEPROM Address Map (2/7)

This chapter provides EEPROM Address Map for LQ-2180 and component layouts and circuit diagram for the C272 Main Board.

NOTE: The data of two or more bytes are assigned in such was as lower byte to lower address, higher byte to higher address.

Table 7-1. EEPROM Address Map (1/7) Address

Data

Data Format

00H, 01H (reserved)

Factory setting

0000H

0000H

Area 1 02H, 03H Character table selection

Appendix

Data Format

04H, 05H

Page length for rear tractor

1 to 22x360 (by 1/360 inch) 0000H: 11 inch (the default)

0000H

0000H

(11 inch)

(11 inch)

Page length for front tractor

1 to 22x360 (by 1/360 inch) 0000H: 11 inch (the default)

0000H

0000H

(11 inch)

(11 inch)

Page length for CSF bin 1

1 to 22x360 (by 1/360 inch) 0000H: 22 inch (the default)

0000H

0000H

(22 inch)

(22 inch)

Page length for CSF bin 2

1 to 22x360 (by 1/360 inch) 0000H: 22 inch (the default)

0000H

0000H

(22 inch)

(22 inch)

TOF adjustment value for rear tractor

-60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch)

0000H

0000H

(8.5 mm)

(8.5 mm)

TOF adjustment value for front tractor

-60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch)

0000H

0000H

(8.5 mm)

(8.5 mm)

TOF adjustment value for CSF bin 1

-60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch)

0000H

0000H

(8.5 mm)

(8.5 mm)

TOF adjustment value for CSF bin 2

-60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch)

0000H

0000H

(8.5 mm)

(8.5 mm)

TOF adjustment value for rear manual insertion

-60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch)

0000H

0000H

(8.5 mm)

(8.5 mm)

TOF adjustment value for front manual insertion

-60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch)

0000H

0000H

(8.5 mm)

(8.5 mm)

Bottom margin for rear tractor

1 to 22x360 (by 1/360 inch), 0000H: 11inch (the default)

0000H

0000H

(11 inch)

(11 inch)

Bottom margin for front tractor

1 to 22x360 (by 1/360 inch), 0000H: 11inch (the default)

0000H

0000H

(11 inch)

(11 inch)

Font selection

0: Roman 1: Draft 2: Sans serif 3: Courier

06H, 07H

0AH, 0BH

0CH, 0DH 0: PC437 1: PC850 2: PC860 3: PC863 4: PC865 5: PC861 6: BRASCII 7: Abicomp 8: ISO Latin 1 9: Roman 8 10:PC437 Greek 11:PC852 12:PC853 13:PC855 14:PC857 15:PC864 16:PC866 17:PC869 18:ISO Latin 1T

19:ISO 8859-7 20:MAZOWIA 21:Code MJK 22:Bulgaria 23:Estonia 24:PC774 25:ISO 8859-2 26:PC866 LAT 27:PC866 UKR 28:Hebrew 7 29:Hebrew 8 30:PC862 31:PCAPTEC 32:PC708 33:PC720 34:PCAR864 35:PC858 36:ISO 8859-15

0000H

37:Italic U.S.A. 38:Italic France 39:Italic Germany I 40:Italic U.K.

41:Italic Denmark 42:Italic Sweden 43:Italic Italy 44:Italic Spain

0000H

0000H (PC437)

0EH, 0FH 10H, 11H 12H, 13H 14H, 15H

16H, 17H

18H, 19H 1AH, 1BH

0000H

Factory setting

Data

08H, 09H Q-pit data

Q-pit data

Address

1CH

EEPROM Address Map

4: Prestige 5: Script 6: Others

00H

00H

(Roman)

(Roman)

(the default)

47

LQ-2180

Revision A Table 7-3. EEPROM Address Map (3/7)

Address

Data

Data Format 0: 10 cpi 1: 12 cpi 2: 15 cpi

3: 17 cpi 4: 20 cpi 5: Proportional

Table 7-4. EEPROM Address Map (4/7) Q-pit data

Factory setting

00H (10 cpi)

00H (10 cpi)

00H

00H

1DH

Pitch selection

1EH

(reserved)

1FH

Print direction setting

0: Bi-d.

1: Uni-d.

2: Auto

00H (Bi-d.)

00H (Bi-d.)

20H

I/F mode selection

0: Auto I/F selection 1: Parallel I/F 2: Type-B I/F

00H (Auto)

00H (Auto)

21H

Auto I/F wait time setting

10:10 sec.

30:30 sec.

00:10 sec. (the default)

Auto line feed Auto tear off Skip over perforations High speed draft Input buffer -------

b0: Auto line feed 0: Off, 1: On b1: Auto tear off 0: Off, 1: On b2: Skip over perforation 0: Off, 1: On b3: High speed draft 0: On, 1: Off b4: Input buffer 0: On, 1: Off b5: (reserved) b6: (reserved) b7: (reserved)

22H

Appendix

0AH

0AH

(10 sec.)

(10 sec.)

00H

00H

Address

Data

Data Format

Q-pit data

Factory setting

23H

Software 0 slash Buzzer Roll paper Auto CR A. G. M. -----

b0: Software 0: ESC/P2, 1: IBM 2391 Plus b1: 0 slash, 0: Off, 1: On b2: Buzzer 0: On, 1: Off b3: Roll paper 0: Off, 1: On b4: Auto CR (IBM) 0: Off, 1: On b5: A. G. M. (IBM) 0: Off, 1: On b6: (reserved) b7: (reserved)

00H

00H

24H, 25H

Tear-off adjustment value

-128 to +127 (by 1/360 inch)

0000H

0000H

26H

Other font selection

0: Roman 1: Sans Serif H 2: OCR-B

00H

00H

27H

Backup flags 1 Copy mode

00H

00H

28H

Backup flags 2 In tear-off state Bin select

00H

00H

EEPROM Address Map

3: Orator 4: Orator-S 5: Script C

0: Friction Bin 1 or Tractor not Tear off 1: Friction Bin 1 2: Friction Bin 2 3: Friction Card 4: Tractor & Tear off

48

LQ-2180

Revision A Table 7-5. EEPROM Address Map (5/7)

Table 7-6. EEPROM Address Map (6/7) Q-pit data

Factory setting

Address

b0: LOAD function b1: EJECT function b2: FONT selection b3: PITCH selection b4: TEAR OFF function b5: BIN selection b6: Draft self test b7: LQ self test

00H

00H

3CH

Starting Year

3DH

b0: LF function b1: FF function b2: Micro Adjust function b3: Pause function b4: Data dump b5: Default setting b6: Bi-d. adjustment b7: (reserved)

00H

Manual insertion wait time

3 to 30 (by 0.1 sec.), 00H: 2 sec when Normal mode. (same as 3 sec when copy mode. default)

00H

00H

(2or3 sec.)

(2or3 sec.)

2CH

Tear-off wait time

3 to 30 (by 0.1 sec.), 00H: 3 sec. (the default)

00H (3 sec.)

2DH to 2EH

(reserved)

2FH

Copy mode

Address 29H

2AH

2BH

Data

Data Format

Panel mask pattern 1

Panel mask pattern 2

30H-33H Driving line count for ribbon change timing 34H-37H Driving Hour 38H3BH

Driving Line Count

Appendix

0: Off

1: On

0 - 0FFFFFFFFH (count)

Q-pit data

Factory setting

0 - 99 (the last two figures of Anno Domini)

00H

00H

Starting Month

1 - 12

00H

00H

3EH

Starting Date

1 - 31

00H

00H

3FH

Black paper mode paper width measure

b0: black paper mode 0: Off, 1: On b1: paper width measure 0: On, 1: Off b2: b2 to b7: (reserved)

00H

00H

40H to 41H

TOF Minimum value

-120 to -60, 0: -60 (4.2 mm) Value out of the range above is considered -60.

00H

00H

42H

I/F timing data

bit0-3: BUSY timing data bit4-7: XAACK timing data

00H

00H

43H

(complement of 42H)

FFH

FFH

44H to 5DH

(reserved)

00H

00H

00H (3 sec.)

5EH, 5FH

Paper edge length

0000H

0000H

00H

00H

60H, 61H

Page length for rear manual insertion

1 to 22x360 (by 1/360 inch), 0000H: 22 inch (the default)

0000H

0000H

(22 inch)

(22 inch)

00H

00H

Page length for front manual insertion

1 to 22x360 (by 1/360 inch), 0000H: 22 inch (the default)

0000H

000000 00H

62H, 63H

0000H

000000 00H

(22 inch)

(22 inch)

64H to 66H

Sub-number for customization

00H to 09H

67H

(reserved)

Data

00H

0 - 0FFFFFFFFH (minutes)

000000 00H

000000 00H

0 - 0FFFFFFFFH (count)

000000 00H

000000 00H

EEPROM Address Map

Data Format

000000H

000000H

(Standard)

(Standard)

00H

00H

49

LQ-2180

Revision A Table 7-7. EEPROM Address Map (7/7)

Address

Data

Data Format

Q-pit data

Factory setting

Area 2 68H

Market

0: Standard version 1: NLSP version

00H

00H

69H

IBM character table

0: Table2 1: Table1

00H

00H

70H

(reserved)

00H

00H

71H

Check sum of Area 2

00H

00H

72H

Vp adjustment value

80H

*a)

73H

Vp adjustment value (complement of 72H)

7FH

*a)

74H

Bi-d adjustment value for high speed draft / draft mode

-12 to +12 (by 1/720 inch)

00H

*a)

75H

Bi-d adjustment value for draft copy mode

-12 to +12 (by 1/720 inch)

00H

*a)

76H

Bi-d adjustment value for LQ mode

-12 to +12 (by 1/720 inch)

00H

*a)

77H

(reserved)

00H

00H

78H

TPE level

FFH

FFH

79H

TPE adjustment position

00H

00H

7AH to 7FH

(reserved)

00H

00H

Area 3

-10 to +10 (by 1/180 inch)

*a) These data are fixed by each printer hardware in the factory. They should not be changed afterwards.

Appendix

EEPROM Address Map

50

LQ-2180

Revision A

7.2 Connector Summary The following figure shows how primary components are connected.

The table below shows the cable alignment of the C272 Main Board.

Table 7-8. C272 Main Board Connection

P r in te r M e c h a n is m

Board

P F M o to r

Connector

Function

Pins

C R M o to r

CN1

Parallel interface

36

P G

CN2

Type B interface

36

R e le a s e L e v e r P o s itio n S e n s o r

CN3

C165 PSB/PSE board assembly

12

P E - R e a r S e n s o r

CN4

HP sensor

3

CN5

Rear PE sensor

3

CN6

Front PE sensor

2

CN7

TOP sensor

4

CN8

Printhead (F)

18

CN9

Printhead (R)

16

CN10

PF motor

4

C N 2

CN11

CR motor

5

C 1 6 5 P N L B o a rd

CN12

Release lever position sensor 1

2

CN13

PG sensor

2

CN14

CSF

10

CN15

PNL board assembly

22

CN16

Release lever position sensor 2

2

CN17

Fan

2

S e n s o r

P E - F ro n t S e n s o r H P S e n s o r P W

S e n s o r

P r in th e a d

F a n

C272 MAIN Board

C a s e O p e n S e n s o r

C N 1 0

C N 1 1

C N 1 2 C N 1 6

C N 1 3

C N 5

C N 6

C N 4

C N 8 C N 9

C N 7

C N 1 7

C 2 7 2 M A IN B o a r d A s s e m b ly

C N 1 4 C N 2

C N 1

O p tio n I/F

P a r a lle l I/F

C N 3

C S F

C N 1 5

C N 1

H o s t C o m p u te r

C 1 6 6 P S B /P S E B o a rd

Figure 7-1. Cable Connections

Appendix

Connector Summary

51

LQ-2180

Revision A

NOTE: The table below provides information of the connector that vary from C165 Main Board used in LQ-2170.

Figure 7-2. Connector Pin Assignment (Changed/new items only) LQ-2170 (C165MAIN) Connector

Pin alignment

Connector

Function

Pin alignment

1

CN14

CSF

1: A 2: B 3: -A 4: -B 5: HOLD 6: +5V 7: GND 8: GND 9: +35V 10:+35V

CN14

CSF

1: +35V 2: +5V 3: HOLD 4: +35V 5: -A 6: B 7: GND 8: GND 9: A 10:-B

2

CN12

Release lever position

1: RELEASE 1 2: GND 3: RELEASE 2 4: GND

CN12

Release lever position

1: RELEASE 1 2: GND

CN16

Release lever position

1: RELEASE 2 2: GND

---

CN17

Fan

1: PE 2: GND

3

Appendix

Function

LQ-2180 (C272MAIN)

---

---

Connector Summary

52

LQ-2180

Revision A

7.3 Component Layout

Figure 7-3. C272Main Component Layout - Component Side

Appendix

Component Layout

53

LQ-2180

Revision A

Figure 7-4. C272Main Component Layout - Soldering Side

Appendix

Component Layout

54

LQ-2180

Revision A

7.4 Circuit Diagram See the following page for the dircuit digram of the C272 Main Board.

Appendix

Circuit Diagram

55